[Mission 2022] QUIZ – 2022: INSIGHTS STATIC QUIZ, 23 November 2021 – Geography – INSIGHTSIAS

Solution: c)

Steppe climate will have lower and irregular rainfall. North-eastern India receives either abundant rainfall or gets too cold for being called a steppe climate.

Solution: a)

A phenomenon associated with the monsoon is its tendency to have ‘breaks’ in rainfall. Thus, it has wet and dry spells. In other words, the monsoon rains take place only for a few days at a time. They are interspersed with rainless intervals.

These breaks in monsoon are related to the movement of the monsoon trough. For various reasons, the trough and its axis keep on moving northward or southward, which determines the spatial distribution of rainfall.

Withdrawal or the retreat of the monsoon is a more gradual process.

Solution: d)

Jet streams are some of the strongest winds in the atmosphere. Their speeds usually range from 129 to 225 kilometers per hour, but they can reach more than 443 kilometers per hour. They are faster in winter when the temperature differences between tropical, temperate, and polar air currents are greater.
At most times in the Northern and Southern Hemispheres, there are two jet streams: a subtropical jet stream centered at about 30 degrees latitude and a polar-front jet stream whose position varies with the boundary between polar and temperate air. A reverse jet stream blows toward the west in tropical high altitudes during the Northern Hemispheres summer. It is associated with the heating of the Asian continent and may help bring summer monsoons to the Indian Ocean.

Source

Solution: a)

Rainfall decrease from east to west in northern India because of the progressive decrease in the humidity of the winds. As the moisture-bearing winds of the Bay of Bengal branch move further and further island, they exhaust most of the moisture they carry along with them. This consequently leads to a gradual decrease.

In the North-east, the hilly terrains and mountainous environment exert a great control on the generation and distribution of precipitation because orography provides the necessary uplift to the moisture-laden currents striking against the topographic barriers.

As a general rule, precipitation increases with elevation to a certain level of altitude and then decreases after a certain level with further ascent up the slopes.

Solution: b)

The western cyclonic disturbances are weather phenomena of the winter months brought in by the westerly flow from the Mediterranean region.

They usually influence the weather of the north and north-western regions of India.